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<ul><li><code>end</code>，在时间结束时执行过渡（默认值）</li> <li><code>start</code>，在时间开始时执行过渡</li></ul></li></ul> <p><code>transition</code>：可以同时设置过渡相关的所有属性</p> <ul><li>只有一个要求，如果要写延迟，则两个时间中第一个是持续时间，第二个是延迟时间</li></ul> <div class="language-CSS line-numbers-mode"><pre class="language-css"><code><span class="token comment">/* transition: margin-left 2s 1s; */</span>
<span class="token property">transition-property</span><span class="token punctuation">:</span> margin-left<span class="token punctuation">;</span>
<span class="token property">transition-duration</span><span class="token punctuation">:</span> 2s<span class="token punctuation">;</span>
<span class="token property">transition-delay</span><span class="token punctuation">:</span> 1s<span class="token punctuation">;</span>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br></div></div><p><img src="https://hasakwebblogimg.oss-cn-hangzhou.aliyuncs.com/202211151911863.gif" alt="amation1"></p> <p><strong>几种过渡效果对比</strong></p> <ul><li><code>linear</code>匀速运动</li></ul> <div class="language-CSS line-numbers-mode"><pre class="language-css"><code><span class="token property">transition-timing-function</span><span class="token punctuation">:</span> linear<span class="token punctuation">;</span>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p><img src="https://hasakwebblogimg.oss-cn-hangzhou.aliyuncs.com/202211151912560.gif" alt="amation2"></p> <ul><li><code>ease</code> 默认值，慢速开始，先加速后减速</li></ul> <div class="language-CSS line-numbers-mode"><pre class="language-css"><code><span class="token property">transition-timing-function</span><span class="token punctuation">:</span> ease<span class="token punctuation">;</span>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p><img src="https://hasakwebblogimg.oss-cn-hangzhou.aliyuncs.com/202211151913751.gif" alt="amation3"></p> <ul><li><code>ease-in</code> 加速运动</li></ul> <div class="language-CSS line-numbers-mode"><pre class="language-css"><code><span class="token property">transition-timing-function</span><span class="token punctuation">:</span> ease-in<span class="token punctuation">;</span>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p><img src="https://hasakwebblogimg.oss-cn-hangzhou.aliyuncs.com/202211151913807.gif" alt="amation4"></p> <ul><li><code>ease-out</code> 减速运动</li></ul> <div class="language-CSS line-numbers-mode"><pre class="language-css"><code><span class="token property">transition-timing-function</span><span class="token punctuation">:</span> ease-out<span class="token punctuation">;</span>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p><img src="https://hasakwebblogimg.oss-cn-hangzhou.aliyuncs.com/202211151914466.gif" alt="amation5"></p> <ul><li><code>ease-in-out</code> 先加速后减速</li></ul> <div class="language-CSS line-numbers-mode"><pre class="language-css"><code><span class="token property">transition-timing-function</span><span class="token punctuation">:</span> ease-in-out<span class="token punctuation">;</span>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p><img src="https://hasakwebblogimg.oss-cn-hangzhou.aliyuncs.com/202211151915505.gif" alt="amation6"></p> <ul><li><code>cubic-bezier()</code>来指定时序函数</li></ul> <div class="language-CSS line-numbers-mode"><pre class="language-css"><code><span class="token property">transition-timing-function</span><span class="token punctuation">:</span> <span class="token function">cubic-bezier</span><span class="token punctuation">(</span>.17<span class="token punctuation">,</span> 1.79<span class="token punctuation">,</span> .68<span class="token punctuation">,</span> -0.69<span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p><img src="https://hasakwebblogimg.oss-cn-hangzhou.aliyuncs.com/202211151915956.gif" alt="amation7"></p> <ul><li><code>steps()</code>分步执行过渡效果</li></ul> <div class="language-CSS line-numbers-mode"><pre class="language-css"><code><span class="token comment">/* transition-timing-function: steps(2, end); */</span>
<span class="token property">transition-timing-function</span><span class="token punctuation">:</span> <span class="token function">steps</span><span class="token punctuation">(</span>2<span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br></div></div><p><img src="https://hasakwebblogimg.oss-cn-hangzhou.aliyuncs.com/202211151916965.gif" alt="amation8"></p> <div class="language-CSS line-numbers-mode"><pre class="language-css"><code><span class="token property">transition-timing-function</span><span class="token punctuation">:</span> <span class="token function">steps</span><span class="token punctuation">(</span>2<span class="token punctuation">,</span> start<span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p><img src="https://hasakwebblogimg.oss-cn-hangzhou.aliyuncs.com/202211151916948.gif" alt="amation9"></p> <h2 id="_2-动画"><a href="#_2-动画" class="header-anchor">#</a> 2. 动画</h2> <p>动画和过渡类似，都是可以实现一些动态的效果，不同的是</p> <ul><li>过渡需要在某个属性发生变化时才会触发</li> <li>动画可以自动触发动态效果</li></ul> <p>设置动画效果，必须先要设置一个关键帧，关键帧设置了动画执行每一个步骤</p> <div class="language-CSS line-numbers-mode"><pre class="language-css"><code><span class="token atrule"><span class="token rule">@keyframes</span> test</span> <span class="token punctuation">{</span>
    <span class="token selector">from</span> <span class="token punctuation">{</span>
        <span class="token property">margin-left</span><span class="token punctuation">:</span> 0<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>

    <span class="token selector">to</span> <span class="token punctuation">{</span>
        <span class="token property">margin-left</span><span class="token punctuation">:</span> 900px<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br></div></div><p><code>animation-name</code> :指定动画的关键帧名称</p> <p><code>animation-duration</code>：指定动画效果的持续时间</p> <p><code>animation-delay</code>：动画效果的延迟，等待一段时间后在执行动画</p> <p><code>animation-timing-function</code>：动画的时序函数</p> <p><code>animation-iteration-count</code>:  动画执行的次数</p> <ul><li><code>infinite</code> 无限执行</li></ul> <p><code>animation-direction</code> 指定动画运行的方向</p> <ul><li><code>normal</code> 从<code>from</code>向<code>to</code>运行，每次都是这样，默认值</li> <li><code>reverse</code> 从<code>to</code>向<code>from</code>运行，每次都是这样</li> <li><code>alternate</code> 从<code>from</code>向<code>to</code>运行，重复执行动画时反向执行</li> <li><code>alternate-reverse</code> 从<code>to</code>向<code>from</code>运行，重复执行动画时反向执行</li></ul> <p><code>animation-play-state</code> 设置动画的执行状态</p> <ul><li><code>running</code> 动画执行，默认值</li> <li><code>paused</code> 动画暂停</li></ul> <p><code>animation-fill-mode</code> 动画的填充模式</p> <ul><li><code>none</code> 动画执行完毕，元素回到原来位置，默认值</li> <li><code>forwards</code> 动画执行完毕，元素会停止在动画结束的位置</li> <li><code>backwards</code> 动画延时等待时，元素就会处于开始位置</li> <li><code>both</code> 结合了<code>forwards</code>和<code>backwards</code></li></ul> <p><strong>实例1</strong></p> <div class="language-CSS line-numbers-mode"><pre class="language-css"><code><span class="token comment">/* animation-name: test;
animation-duration: 2s;
animation-delay: 2s;
animation-timing-function: linear;
animation-iteration-count: infinite;
animation-direction: alternate;
animation-fill-mode: both; */</span>

<span class="token property">animation</span><span class="token punctuation">:</span> test 2s 2s linear infinite alternate both<span class="token punctuation">;</span>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br></div></div><p><img src="https://hasakwebblogimg.oss-cn-hangzhou.aliyuncs.com/202211151919021.gif" alt="amation10"></p> <h2 id="_3-实战"><a href="#_3-实战" class="header-anchor">#</a> 3. 实战</h2> <div class="language-CSS line-numbers-mode"><pre class="language-css"><code><span class="token selector">.box</span> <span class="token punctuation">{</span>
    <span class="token property">height</span><span class="token punctuation">:</span> 271px<span class="token punctuation">;</span>
    <span class="token property">width</span><span class="token punctuation">:</span> 132px<span class="token punctuation">;</span>
    <span class="token property">background-image</span><span class="token punctuation">:</span> <span class="token url"><span class="token function">url</span><span class="token punctuation">(</span><span class="token string url">&quot;/assets/米兔/bigtap-mitu-queue-big.png&quot;</span><span class="token punctuation">)</span></span><span class="token punctuation">;</span>
    <span class="token property">margin</span><span class="token punctuation">:</span> 100px auto<span class="token punctuation">;</span>
    <span class="token property">transition</span><span class="token punctuation">:</span> background-position 1s <span class="token function">steps</span><span class="token punctuation">(</span>4<span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>

<span class="token selector">.box:hover</span> <span class="token punctuation">{</span>
    <span class="token property">background-position</span><span class="token punctuation">:</span> -528px 0<span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br></div></div><div class="language-CSS line-numbers-mode"><pre class="language-css"><code><span class="token selector">.box</span> <span class="token punctuation">{</span>
    <span class="token property">height</span><span class="token punctuation">:</span> 256px<span class="token punctuation">;</span>
    <span class="token property">width</span><span class="token punctuation">:</span> <span class="token function">calc</span><span class="token punctuation">(</span>1536px/6<span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token property">background-image</span><span class="token punctuation">:</span> <span class="token url"><span class="token function">url</span><span class="token punctuation">(</span><span class="token string url">&quot;/assets/奔跑的少年/bg2.png&quot;</span><span class="token punctuation">)</span></span><span class="token punctuation">;</span>
    <span class="token property">margin</span><span class="token punctuation">:</span> 100px auto<span class="token punctuation">;</span>
    <span class="token property">animation</span><span class="token punctuation">:</span> run 1s <span class="token function">steps</span><span class="token punctuation">(</span>6<span class="token punctuation">)</span> infinite<span class="token punctuation">;</span>

<span class="token punctuation">}</span>

<span class="token comment">/* 关键帧 */</span>
<span class="token atrule"><span class="token rule">@keyframes</span> run</span> <span class="token punctuation">{</span>
    <span class="token selector">from</span> <span class="token punctuation">{</span>
        <span class="token property">background-position</span><span class="token punctuation">:</span> 0 0<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>

    <span class="token selector">to</span> <span class="token punctuation">{</span>
        <span class="token property">background-position</span><span class="token punctuation">:</span> -1536px 0<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br></div></div><p><img src="https://hasakwebblogimg.oss-cn-hangzhou.aliyuncs.com/202211151921938.gif" alt="amation11"></p> <div class="language-CSS line-numbers-mode"><pre class="language-css"><code><span class="token selector">.outer</span> <span class="token punctuation">{</span>
    <span class="token selector">25%,
    35%,
    45%,
    55%,
    65%,
    75%,
    85%,
    95%,
    98%,
    to</span> <span class="token punctuation">{</span>
        <span class="token property">margin-top</span><span class="token punctuation">:</span> 600px<span class="token punctuation">;</span>
        <span class="token property">animation-timing-function</span><span class="token punctuation">:</span> ease-out<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>

    <span class="token selector">10%,
    20%,
    30%,
    40%,
    50%,
    60%,
    70%,
    80%,
    90%</span> <span class="token punctuation">{</span>
        <span class="token property">animation-timing-function</span><span class="token punctuation">:</span> ease-in<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>

    <span class="token selector">10%</span> <span class="token punctuation">{</span>
        <span class="token property">margin-top</span><span class="token punctuation">:</span> 60px<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>

    <span class="token selector">20%</span> <span class="token punctuation">{</span>
        <span class="token property">margin-top</span><span class="token punctuation">:</span> 120px<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>

    <span class="token selector">30%</span> <span class="token punctuation">{</span>
        <span class="token property">margin-top</span><span class="token punctuation">:</span> 180px<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>

    <span class="token selector">40%</span> <span class="token punctuation">{</span>
        <span class="token property">margin-top</span><span class="token punctuation">:</span> 240px<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>

    <span class="token selector">50%</span> <span class="token punctuation">{</span>
        <span class="token property">margin-top</span><span class="token punctuation">:</span> 300px<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>

    <span class="token selector">60%</span> <span class="token punctuation">{</span>
        <span class="token property">margin-top</span><span class="token punctuation">:</span> 360px<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>

    <span class="token selector">70%</span> <span class="token punctuation">{</span>
        <span class="token property">margin-top</span><span class="token punctuation">:</span> 420px<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>

    <span class="token selector">80%</span> <span class="token punctuation">{</span>
        <span class="token property">margin-top</span><span class="token punctuation">:</span> 480px<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>

    <span class="token selector">90%</span> <span class="token punctuation">{</span>
        <span class="token property">margin-top</span><span class="token punctuation">:</span> 540px<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>

    <span class="token selector">96%</span> <span class="token punctuation">{</span>
        <span class="token property">margin-top</span><span class="token punctuation">:</span> 580px<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>

    <span class="token selector">99%</span> <span class="token punctuation">{</span>
        <span class="token property">margin-top</span><span class="token punctuation">:</span> 590px<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br><span class="line-number">21</span><br><span class="line-number">22</span><br><span class="line-number">23</span><br><span class="line-number">24</span><br><span class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br><span class="line-number">28</span><br><span class="line-number">29</span><br><span class="line-number">30</span><br><span class="line-number">31</span><br><span class="line-number">32</span><br><span class="line-number">33</span><br><span class="line-number">34</span><br><span class="line-number">35</span><br><span class="line-number">36</span><br><span class="line-number">37</span><br><span class="line-number">38</span><br><span class="line-number">39</span><br><span class="line-number">40</span><br><span class="line-number">41</span><br><span class="line-number">42</span><br><span class="line-number">43</span><br><span class="line-number">44</span><br><span class="line-number">45</span><br><span class="line-number">46</span><br><span class="line-number">47</span><br><span class="line-number">48</span><br><span class="line-number">49</span><br><span class="line-number">50</span><br><span class="line-number">51</span><br><span class="line-number">52</span><br><span class="line-number">53</span><br><span class="line-number">54</span><br><span class="line-number">55</span><br><span class="line-number">56</span><br><span class="line-number">57</span><br><span class="line-number">58</span><br><span class="line-number">59</span><br><span class="line-number">60</span><br><span class="line-number">61</span><br><span class="line-number">62</span><br><span class="line-number">63</span><br><span class="line-number">64</span><br><span class="line-number">65</span><br><span class="line-number">66</span><br><span class="line-number">67</span><br><span class="line-number">68</span><br><span class="line-number">69</span><br><span class="line-number">70</span><br><span class="line-number">71</span><br></div></div><p><img src="https://hasakwebblogimg.oss-cn-hangzhou.aliyuncs.com/202211151921716.gif" alt="amation12"></p></div></section> <footer class="page-edit"><!----> <!----></footer> <div class="page-nav"><p class="inner"><span class="prev"><a href="/blogs/基础/html/20221115html12.html" class="prev">
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